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Hoaryleaf Ceanothus
Ceanothus crassifolius
  
13 Nurseries Carry This Plant

About Hoaryleaf Ceanothus (Ceanothus crassifolius) 13 Nurseries Carry This Plant Ceanothus crassifolius is a species of flowering shrub known by the common name hoaryleaf ceanothus. This Ceanothus is found throughout the coastal mountain ranges of the southern half of California below 3,500 ft., and its range extends into Baja California. It is an erect, spreading shrub which can exceed three meters in height. The branches become long and the younger twigs are fuzzy with white or light brown hairs. The small evergreen leaves have widely-spaced teeth along the edges and the undersides are lighter in color and coated with hairs. The flower clusters are borne on short stalks less than three centimeters long and are small and rounded with tiny white flowers. They can be quite dense and can cover branches thickly, or they may be sparse. The flowers may have a yellowish or pink tint. The fruit is a horned capsule less than a centimeter wide. C. crassifolius typically occurs in California chaparral plant associations; other common flora associates are Toyon and Hollyleaf cherry.
Plant Description
Plant Type
Plant Type
Shrub

Size
Size
5 - 14 ft tall
5 - 10 ft wide

Form
Form
Upright

Growth Rate
Growth Rate
Slow

Dormancy
Dormancy
Evergreen

Fragrance
Fragrance
Slight

Flower Color
Flower Color
White

Flowering Season
Flowering Season
Winter, Spring

Wildlife Supported
 
insects, especially bees and butterflies. Plants in the Ceanothus genus are host plants to the Spring Azure, Echo Blue, Pacuvius Duskywing, California Tortoiseshell, Pale Swallowtail, and Hedgerow Hairstreak butterflies.

 
Butterflies & moths hosted ( 2 confirmed , 81 likely * ) SHOW ALL
Orgyia cana Image
Western Tussock Moth Orgyia canaOrgyia cana
Tischeria ceanothi Image
Tischeria ceanothiTischeria ceanothi
*
Strymon melinus Image
Gray Hairstreak Strymon melinusStrymon melinus
*
Papilio eurymedon Image
Pale Tiger Swallowtail Papilio eurymedonPapilio eurymedon
*
Limenitis lorquini Image
Lorquin's Admiral Limenitis lorquiniLimenitis lorquini
*
Nymphalis californica Image
California Tortoiseshell Nymphalis californicaNymphalis californica
*
Callophrys augustinus Image
The Brown Elfin Callophrys augustinusCallophrys augustinus

Landscaping Information
Sun
Sun
Full Sun, Part Shade

Moisture
Moisture
Very Low

Summer Irrigation
Summer Irrigation
Max 2x / month once established

Nurseries
Nurseries
Carried by 13

Cold Tolerance
Cold Tolerance
Tolerates cold to 12° F

Soil Drainage
Soil Drainage
Fast

Soil Description
Soil Description
Prefers granular, well drained soil such as decomposed granite. Soil PH: 6.0 - 8.0

Common uses
Common uses
Bank Stabilization, Bird Gardens, Butterfly Gardens, Bee Gardens

Companion Plants
Companion Plants
Bush Poppy (Dendromecon rigida), Thickleaf Yerba Santa (Eriodictyon crassifolium), toyon (Heteromeles arbutifolia), Scrub Oak (Quercus berberidifolia), and Hollyleaf Cherry (Prunus ilicifolia)

Propagation
Propagation?
For propagating by seed: Hot water and 2-3 mos. stratification.

Sunset Zones
Sunset Zones?
7*, 8, 9, 14, 15, 16, 17, 18*, 19*, 20*, 21*, 22*, 23*, 24*

Natural Setting
Site Type
Site Type
Dry inland ridges, slopes and fans as part of southern chaparral

Climate
Climate
Annual Precipitation: 8.5" - 52.7", Summer Precipitation: 0.15" - 2.66", Coldest Month: 33.4" - 55.3", Hottest Month: 53.4" - 81.1", Humidity: 0.54" - 31.47", Elevation: 3" - 10045"

Alternative Names
Common Names: Hoary-leaved Ceanothus


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Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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